10         20         30        40        50         
CAAUUCCAGAGAACAAG-    U-|   ACA         U             GGAUGU 
                  UCUC  UCUG   CACCCUAAC GAGGGCAUUUAUU      \
                  GGAG  GGAC   GUGGGGUUG CUCUUGUGAAUAG      U
AAAGACUCUGUCGGGUCA    UU^   AGA         U             AAAGGU 
       110       100        90        80        70        60